Book light



FIG. 1 is a front, bottom and left side perspective view of a book light, showing my new design;

FIG. 2 is a rear, top and right side perspective view thereof;

FIG. 3 is an open state view thereof;

FIG. 4 is a front view of the book light shown in FIG. 1

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the book light that form no part of the claimed design. 

CLAIM The ornamental design for a book light, as shown and described. 